Replace scoped_ptr with std::unique_ptr in //ui

ui/ozone/platform/drm/gpu/drm_device_manager.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/ozone/platform/drm/gpu/drm_device_manager.h"
 
 #include <utility>
 
 #include "base/file_descriptor_posix.h"
 #include "base/single_thread_task_runner.h"
@@ skipping 12 matching lines @@
     return device->device_path() == path_;
   }
 
  private:
   base::FilePath path_;
 };
 
 }  // namespace
 
 DrmDeviceManager::DrmDeviceManager(
-    scoped_ptr<DrmDeviceGenerator> drm_device_generator)
+    std::unique_ptr<DrmDeviceGenerator> drm_device_generator)
     : drm_device_generator_(std::move(drm_device_generator)) {}
 
 DrmDeviceManager::~DrmDeviceManager() {
   DCHECK(drm_device_map_.empty());
 }
 
 bool DrmDeviceManager::AddDrmDevice(const base::FilePath& path,
                                     const base::FileDescriptor& fd) {
   base::File file(fd.fd);
   auto it =
@@ skipping 59 matching lines @@
 
 scoped_refptr<DrmDevice> DrmDeviceManager::GetPrimaryDrmDevice() {
   return primary_device_;
 }
 
 const DrmDeviceVector& DrmDeviceManager::GetDrmDevices() const {
   return devices_;
 }
 
 }  // namespace ui